1 2 3 4 5 6 7 8 9 10 11 12 13 14 | private void CheckMdiChildren(Form form) { foreach (Form frm in this.MdiChildren) { if (frm.GetType() == form.GetType()) { frm.Focus(); return; } } form.MdiParent = this; form.Show(); } |
1 2 | Form1 yeniform = new Form1 ();CheckMdiChildren(yeniform ); |